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Bombas Ideal, S.A.
The control valve is absolutely necessary for the setting up of every vertical pump since it shall adjust the
flow rate required.
The non return valve is, however, only required where on account of the length or profile of the discharge
pipe concerned, the mass of water violently returns when a casual or voluntary stop takes place, thus
leading to water hammer .
If for a reason whatever the installation becomes incomplete, it would be advisable to cover those openings
which would provide an access to animals, stones or any other materials.
Make sure that no cloth, cotton or other objects is ever dropped into the well or drilling which might well
block up the strainer or causing a more serious damages to the installation.
THE PUMP SHALL NEVER RUB OR TOUCH THE WELL OR DRILLING WALLS. IT SHALL ONLY HANG
FROM THE HEAD
9.- RUNNING, STARTING AND STOPPING.
!
9.1.- Starting up.
Before starting up the following points should be taken into account:
If the drive unit is lubricated with oil, pour lubricant into the drive unit itself before starting . Drive units
lubricated with grease are supplied already equipped with the ideal quantity of lubricant.
If the installation depth exceeds 10 m or after a period inactivity longer than 15 days, make sure that the
line shaft is full of water before starting or that the shaft bearings are prelubricated.
Make sure that the pump rotor is free to turn. Turn it by hand, by holding the shaft in the gland area.
For installations in wells, the first start-up must be carried out with the on-off sluice valve only partially
open. This will limit the entrainment of sand or silt as much as possible. If the water is turbid, the sluice
valve will need to be throttled still further until limpid water is delivered. Following this, gradually open the
sluice valve, making sure that the pump delivers no more than 40 g/m (40 parts/million) of solid
substances. For pumps coupled to internal combustion engines, a reduction in the flow rate can be
obtained by partially lowering the operating speed.
It the phreatic levels alter with the time, as it is usually the case in the Summer period and the dynamic
level lowers down to induction, the pump would take air thus put in dry operation with the subsequent
deterioration of same. Its main symptoms are :
q
A continued « to-and-fro motion », in the needles of the control panel ammeters, dancing without
stopping from zero to the limit.
q
Discharge in intermittent flow in impulsion.
q
Noise in the pipes and strikes in the retaining valve plates ( if not of the retarded locking type).
q
Irregular running of the Diesel motor with sudden accelerations.
q
Vibrations in general.
The solution to the above failures would consist of adding lengths, lowering the pump down to a higher
depth, whenever the well or drilling and the motor power would allow for it.
When the above symptoms are negligible or distant from one another, the solution would be by partially
locking the adjusting valve.
q
VERIFY WHETHER THE MOTOR ROTATING DIRECTION IS
CORRECT OR NOT PRIOR COUPLING IT.
q
Do not start the set without having flitted all the guards for the moving
parts, to guarantee the safety requirements.
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